#include<iostream>
#include<unistd.h>
#include<stdlib.h>
using namespace std;
int main()
{
  int i=0;
  for(;i<5;i++){
    cout<<"-----------------------------------"<<endl;
    cout << "我是另外一个程序，我的pid是："<<getpid()<<endl;
    cout<<"MYENV:"<<(getenv("MYENV")==NULL?"NULL":getenv("MYENV"))<<endl; 
    cout<<"PATH:"<<(getenv("PATH")==NULL?"NULL":getenv("PATH"))<<endl; 
    cout<<"-----------------------------------"<<endl;
    sleep(1);
  }
  
  return 0;
}
